jones



2 Sheets Sheet 1.

(No Model.)

H. C. JONES.

STEAM BOILEB..

Patented July 7, 1896 Tm: cams mms co, moro-Limo. msmnm'ow. :zy c.

2. t e e h s s t 0V e .n S 2 S. nb N 0 TU C. H m. d 0 M O W,

STEAM BOILBR.

1H( wams warms oo, mofaumo.. www-'amm u. c.

UNITED STATES PATENT Ormea.

HENRY C. J ONES, OF VILMINGTON, DELAVARE, ASSIGNOR TO THE HlLl'llS dr. JONES COMPANY, OF SAME PLAGE.

STEAMBOILER.

SPECIFICATION forming part of Letters Patent No. 563,665, dated July 7, 1896. Application filed September 30, 1895i Serial No. 564,150. (No model.)

To @ZZ whom it may concern.: boiler and the shell of the lue B and sur Be it known that I, HENRY C. JONES, a citirounding the openings c c', formed in these zen of the United States, and a resident of parts. Extending across the flue B from top lvVilmington,Delaware,haveinvented certain to bottom of the saine are a series oi' tube- 5 5 5 improvements in Steam-Boilers, of which the coils G, these tube-coils having vertical terfollowing isV a specication. inin ations secured, respectively, to the upper One object of my invention is to so construct and lower portions of the tine-shell by means a steam-boiler that While it has ample Water of nuts f, and in the outer shell A of the capacity its lateral dimensions Will be such boiler in line vertically with the vertical ter- 6o 1o that it can be easily taken through 'a door or minations of these tubecoils are hand-holes cellar-Way of average Width in a building', a g, provided with suitable detachable covers. further object being to provide an extended Extending through the upper portion of the Water-heating surface and to insure rapid cirboiler from the front head A to the internal culation of Water in the boiler, a still further head A3 are a series of return-tubes H, which 6 5 15 object being to provide an extended storage communicate with the Hue-chamber Hl at the capacity for the ashes, so that the latter need rear of the boiler and with the s;';-olre;c`liain not be removed at frequent intervals, and a ber H2 at the front end of the same, and in final Object being to provide for readily cleanthe flue-chamber H at the rear of the boiler ing the various tubes and ilues of the boiler. is mounted a bafi e-plate l, which tends to 7o zo These objects I attain in the manner hereiir project the products of combustion issuing after set forth, reference being had to the from the flue B upward and forward into the accompanying drawings, 'in Whichrear ends of the return-tubes lll. This bafie- Figure l isalongitudinal section of a steamplate also serves to prevent direct access of boiler constructed in accordance with my inthe products of combustion to the rear head 75 vention. Fig. 2 is a transverse section of the A2 of the boiler, and hence protects the saine same on the line 2 2, Fig. l. Fig. Sis atransand prevents any tendency to `warp it, the verse section of the same on the line 3 3, Fig. baffle-plate itself constituting a segment of l 3 and Fig. a is a transverse section 'on the a sphere, so as to best resist any Warpingtendline A il, Fig. l. ency when subjected to varyingtemperatures. So 3o The outer shell A of the boiler is of oval In the rear head A2 of the boiler in line forni, having its longer axis vertical, the opwith the lower portion of the flueBis an openposite ends of the shell being closed by heads ing vl, provided with a suitable cover, and in A' A2, the front head being flanged for the the lower portion of the baille-plate l is an reception of the front end of the ilue B, the opening so that ready access can be had to S5 35 rear end of which is secured to the flanged the interior of the i'lue B for the purpose ot internal head AE near the rear end of the cleaning the same. boiler. In the front end of the iue B is the The rear head A2 is outwardly flanged and Alireplace or furnace D, having grate-bars a is held in place by bolts and nuts, so that it andtransverse bridge-walls b,\vhich,as shown, can be readily disconnected and Withdrawn, 9o 4o are of metal, but which maybe of lire-brick, if carrying with it the baille-plate l, when it is desired. desired to gain access to the tube-coils G or In the front plate of the flue are the usual return-tubes H for cleaning purposes, and the feed-opening d and an openinsvid', the latter tube-coils can be readily placed in or removed communicating with the draft-chamber D' from the i'iue B, the internal securing-nuts f 9 5 beneath the grate. being,` accessible from the interior oi' the flue Beneath the front end of the shell A of the and the external securing-nuts bein g likewise boiler is a hollow supporting-foot F, having accessible through the hand-holes in the upan opening d2 in the front end of the same, per and lower portions of the shell A of the and this hollow supporting-ft communiboiler. Ico o cates with the draft-chamber D through a The hollow supporting-foot F at the front neel; li, interposed between the shell A of the end of the boiler has considerable cubic capacity, and hence it forms an ash-pit which provides for a comparatively large accumulation of ashes, this being a feature of considerable importance in that class of steamboilers intended for heating houses, assembly-rooms, or the like, where frequent removal of small quantities of ashes is likely to prove objectionable. It, as is ordinarily the case, the draft-chamber D beneath the grate also constitutes the ash-pit, the space for the reception of ashes would be so small that frequent cleaning out of the same would be necessary. Furthermore, the accumulation of ashes therein would choke the flow of cold air to the grate, and would cause the latter to burn out much more rapidly than when the draft-chamber is free from ashes, as in my improved boiler.

By making the outer shell. of the boiler in eval form, with its longer axis vertical, the lateral dimensions of said shell can, without unduly decreasing the water-space of the boiler, be so limited that the boiler can be readily taken through a door or cellar-way of ordinary width, this being' a matter of con siderable importance in boilers intended for house-heatin g, as it enables me to provide a wrought iron or steel boiler of high efficiency instead of the sectional cast-iron boilers usu` ally employed for this purpose. I iind also that boilers of ample size for house-heating and for withstanding the moderate pressures required in that class of work can be provided with oval shells without the necessity of any system of internal stays, the pressure not being sufficientto cause any appreciable change in the oval form of the shell.

The tube-coils G in the flue B serve to very materially increase the heating-surface of the boiler and provide for rapid circulation of the cool water from the bottom of the boiler to a point above the flue when it is subjected to high heat, While the introduction of the circular iiue B into the lower portion of the oval outer casing A so contracts the water-space around said flue as to insure the rapid flow of the water in contact with the surface of the flue and a correspondingly rapid heating of said water.

The boiler has at the top the usual steamdischarge pipes J, and at the bottom a returnpipe K and blow-off pipe K, the latter being provided in the present case with-a pipe K2 for supplying -fresh water as desired.

Having thus described my invention, I claim and desire to secure by Letters Patent l. The combination of the boiler having an internal iue with fireplace therein, both the flue and boiler shell having therein openings beneath the grate, a casing extending from the iiue to the shell around said openings so as to form a discharge-neck extending through the boiler-shell, and a hollow supportingieg communicating through said neck with the draft-chamber beneath the grate so as to form a chamber for the accumulation of ashes. su lostantially as speciiied.

2, The combination of the outer shell and internal flue of the boiler, with tube-coils located in said flue, and having vertical termi nations secured to the upper and lower portions of the flue-shell, substantially as specified.

3. The combination of the outer shell and intern al iiue of the boiler, with the tube-coils located in said internal iiue and having threaded vertical terminations at top and bottom, with nuts applied to said threaded terminations and located respectively on the inner and outer sides of the line-shell, substantially as specified.

4. The combination of the outer shell of the boiler, the internal flue and the return-tubes, with the rear head of the boiler having an opening in line with the lower portion of the iiue, and a baffle-plate having a corresponding opening therein, substantially as specified.

5. The combination of the outer shell of ghe boiler, the internal iiue and the return-tubes, with the rear head of the boiler, and the baliieplate constituting a segment of a sphere and located in front of said rear head, whereby warping of the plate is prevented when su lr jected to varying temperatures, substantially as specified.

In testimony whereof I have signed in y name to this specification in the presence er' two subscribing witnesses.

HENRY C. J ONES. lVitnesses:

FRANK E. BncHToLn, Jos. H. KLEIN.

It is hereby certified that the name of the assignee in Letters Patent No. 563,665, granted July 7, 1896, upon the application of Henry C. Jones, of Vilrnington, Dela- Ware, for an improvement in Steam-Boilers, was erroneously Written and printed the Hills 8u Jones Company,7 Whereas said name should have been Written and printed the Hille@ d: Jones Company, and that the said Letters Patent Should be read with this correction therein that the same may conform to the record of the ease in the Patent Ofee.

Signed, eountersgned, and sealed this 21st clay of July, A. D. 1896.

[SEAL] JNO. M. REYNOLDS,

Assistant Secretary of the Interior.

Countersigned S. T. FISHER,

Acting Commissioner of Patents. 

